# The dunes of Western Sahara have the highest heights. Determine the height of one of them if it is known that the steepness

November 10, 2020 | Education

| **The dunes of Western Sahara have the highest heights. Determine the height of one of them if it is known that the steepness of its leeward slope is 30o, and its length is 200m.**

BC = 200 m – the length of the dune

Angle АСВ = 30о

AB = BC × sin 30о = 200 × 0.5 = 100 m.

The leg, which lies opposite an angle of 30 °, is equal to half the hypotenuse.

Answer: The height of the dune is 100 m.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.